CN219651869U - Bridge removing device for storage tank - Google Patents
Bridge removing device for storage tank Download PDFInfo
- Publication number
- CN219651869U CN219651869U CN202320404075.0U CN202320404075U CN219651869U CN 219651869 U CN219651869 U CN 219651869U CN 202320404075 U CN202320404075 U CN 202320404075U CN 219651869 U CN219651869 U CN 219651869U
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- Prior art keywords
- storage tank
- bridge
- sleeve
- air inlet
- holes
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- 239000000843 powder Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 13
- 239000011261 inert gas Substances 0.000 claims description 5
- 239000003245 coal Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005465 channeling Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Landscapes
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The utility model discloses a bridge removing device for a storage tank, which comprises: the bridge removing sleeve assembly is arranged in the storage tank and can move along the axial direction of the storage tank; the air inlet is arranged at one end of the bridge removing sleeve assembly; the air inlet channel is arranged on the bridge removing sleeve assembly, one end of the air inlet is communicated with the air inlet, the other end of the air inlet is communicated with the storage tank, and when the bridge removing sleeve assembly moves along the axial direction of the storage tank, the air inlet channel is used for introducing gas into different height positions in the storage tank so as to loosen powder at the different height positions in the storage tank. The device simple structure, and improved the efficiency that removes the storage tank bridging.
Description
Technical Field
The utility model relates to the technical field of pulverized coal storage equipment, in particular to a bridge removing device for a storage tank.
Background
At present, a high-pressure pulverized coal conveying system is one of core processes of pulverized coal gasification technology and mainly comprises a filter, a low-pressure storage tank, a lock hopper, a feed tank and the like.
Wherein, the storage tank that stores powder such as buggy is in the unloading in-process, and the powder bridging easily appears, influences the powder and unloads to influence system's overall operation stability.
The general operation of the pulverized coal lock hopper in the prior art when a bridge is erected is as follows: firstly, closing a balance valve of the pulverized coal lock hopper and a feeding tank, closing a discharging valve of the pulverized coal lock hopper, and then opening an air charging cone air inlet valve of the pulverized coal lock hopper to blow upwards or opening an upper part pressure charging valve of the pulverized coal lock hopper to press downwards. The scheme is poor in bridge removing effect, and powder in the middle section of the lock hopper cannot be loosened, so that the bridge removing efficiency is reduced, and meanwhile, powder coal lock hopper blanking can be suspended firstly during operation, and the normal operation of a powder coal conveying system is influenced.
In summary, how to improve the efficiency of removing the bridging without affecting the normal operation of the pulverized coal conveying system is a problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims to provide a bridge removing device for a storage tank, which has a simple structure and can improve the bridge removing efficiency on the premise of not influencing the normal operation of a pulverized coal conveying system.
In order to achieve the above object, the present utility model provides a bridge removing device for a storage tank, comprising:
the bridge removing sleeve assembly is arranged in the storage tank and can move along the axial direction of the storage tank;
the air inlet is arranged at one end of the bridge removing sleeve assembly;
the air inlet channel is arranged on the bridge removing sleeve assembly, one end of the air inlet is communicated with the air inlet, the other end of the air inlet is communicated with the storage tank, and when the bridge removing sleeve assembly moves along the axial direction of the storage tank, the air inlet channel is used for introducing gas into different height positions in the storage tank so as to loosen powder at the different height positions in the storage tank.
Preferably, the bridge sleeve assembly comprises:
one end of the outer sleeve is arranged in the storage tank, extends to the bottom of the storage tank along the axial direction of the storage tank, and is provided with a plurality of first through holes communicated with the storage tank;
one end of the inner sleeve is arranged in the outer sleeve and can move along the outer sleeve, the inner sleeve is provided with a plurality of second through holes communicated with the outer sleeve, and the first through holes, the second through holes and the inner side wall of the inner sleeve form the air inlet channel.
Preferably, the air inlet is arranged at one end of the inner sleeve, which is positioned outside the storage tank.
Preferably, all the first through holes are uniformly formed in a first preset section of the outer sleeve, all the second through holes are uniformly formed in a second preset section at the bottom of the inner sleeve, and the inner sleeve drives the second preset section to move in the range of the first preset section.
Preferably, all the first through holes are uniformly arranged along the circumferential wall and the axial direction of the outer sleeve, and the aperture of the first through holes is 3-20 μm.
Preferably, all the second through holes are uniformly arranged along the circumferential wall and the axial direction of the inner sleeve, and the aperture of the second through holes is 1-3mm.
Preferably, the bridge sleeve assembly further comprises:
the sealed cavity is communicated with one end of the outer sleeve outside the storage tank and is in sealing connection with the inner sleeve, and inert gas is arranged in the sealed cavity so as to prevent the powder from drifting out.
Preferably, the bridge sleeve assembly further comprises:
and the driving piece is connected with one end of the inner sleeve extending out of the outer sleeve and is used for driving the inner sleeve to move along the outer sleeve.
Compared with the background technology, the bridge removing sleeve assembly is added, the bridge removing sleeve assembly is arranged in the storage tank and can move up and down along the axial direction of the storage tank, the bridge removing sleeve assembly is provided with the air inlet channel communicated with the storage tank, air enters the storage tank through the air inlet channel, powder in the storage tank can be loosened, and meanwhile, when the bridge removing sleeve assembly moves up and down, the air inlet channel also moves up and down, air can be introduced into different positions in the storage tank, so that powder at different height positions in the storage tank can be loosened, and bridging in the storage tank is easier to fall. Therefore, the device can improve the efficiency of removing bridging on the premise of not influencing the normal operation of the pulverized coal conveying system.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a bridge removing device for a storage tank according to an embodiment of the present utility model;
FIG. 2 is a schematic structural view of a seal cavity according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a second through hole according to an embodiment of the present utility model.
Wherein:
1-1 is an air inlet, 1-2 is a driving piece, 1-3 is an inner sleeve, 1-4 is a second through hole, 2-1 is a sealing cavity, 2-2 is an outer sleeve, 2-3 is a first through hole, and 2-4 is a sealing air inlet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The present utility model will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present utility model.
The utility model provides a bridge removing device for a storage tank, which comprises a bridge removing sleeve assembly, an air inlet 1-1 and an air inlet channel. The bridge removing sleeve assembly is arranged in the storage tank and can move along the axial direction of the storage tank; the air inlet 1-1 is arranged at one end of the bridge removing sleeve assembly; the air inlet channel is arranged on the bridge removing sleeve assembly, one end of the air inlet channel is communicated with the air inlet 1-1, the other end of the air inlet channel is communicated with the storage tank, and when the bridge removing sleeve assembly moves along the axial direction of the storage tank, the air inlet channel is used for introducing gas into different height positions in the storage tank so as to loosen powder at the different height positions in the storage tank.
The storage tank is easy to generate a powder bridge in the unloading process, so that the outlet of the storage tank is blocked, the powder unloading is influenced, and the overall operation stability of the system is further influenced.
When the bridge removing device works, gas enters the storage tank through the gas inlet channel, powder in the storage tank can be loosened, meanwhile, when the bridge removing sleeve assembly moves up and down, the gas inlet channel also moves up and down, and the gas can be introduced into different positions in the storage tank to loosen the powder at different height positions in the storage tank, so that the bridge in the storage tank can fall down more easily. Therefore, the device can improve the efficiency of removing bridging on the premise of not influencing the normal operation of the pulverized coal conveying system.
Further preferably, on the basis of the above embodiment, the bridge sleeve assembly comprises an outer sleeve 2-2 and an inner sleeve 1-3. One end of the outer sleeve 2-2 is arranged in the storage tank, extends to the bottom of the storage tank along the axial direction of the storage tank, and is provided with a plurality of first through holes 2-3 communicated with the storage tank; one end of the inner sleeve 1-3 is arranged in the outer sleeve 2-2 and can move along the outer sleeve 2-2, and is provided with a plurality of second through holes 1-4 communicated with the outer sleeve 2-2, and the first through holes 2-3, the second through holes 1-4 and the inner side walls of the inner sleeve 1-3 form an air inlet channel.
Specifically, referring to the orientation of fig. 1, one end of the outer sleeve 2-2 is fixedly installed in the storage tank, while one end of the inner sleeve 1-3 can move up and down relative to the storage tank and the outer sleeve 2-2, and the bottom ends of the outer sleeve 2-2 and the inner sleeve 1-3 are both hermetically arranged. In operation, gas flowing into the inner sleeve 1-3 is introduced into the tank by aligning the second through hole 1-4 of the inner sleeve 1-3 with the first through hole 2-3 of the outer sleeve 2-2.
Of course, the bridge removing operation can be completed by arranging the sleeve, but the sleeve is directly inserted into the powder, so that the through hole on the sleeve is directly contacted with the powder, the powder is easy to block the through hole, and gas cannot be introduced into the storage tank through the through hole, so that the bridge removing effect is poor.
Meanwhile, as the bridge has a certain height, the embodiment of the utility model is optimal for realizing multidirectional disturbance.
Further preferably, on the basis of the above embodiment, the air inlet 1-1 is provided at the end of the inner sleeve 1-3 located outside the tank.
Of course, the specific location of the air inlet 1-1 is not limited in this context.
On the basis of the above embodiment, as a further preferred option, all the first through holes 2-3 are uniformly arranged on the first preset section of the outer sleeve 2-2, all the second through holes 1-4 are uniformly arranged on the second preset section at the bottom of the inner sleeve 1-3, and the inner sleeve 1-3 drives the second preset section to move within the range of the first preset section.
Specifically, the first preset section and the second preset section refer to a certain section position on the outer sleeve 2-2 and the inner sleeve 1-3.
When the inner sleeve 1-3 moves up and down, the second preset section of the inner sleeve 1-3 is controlled to repeatedly move up and down within the range of the first preset section of the outer sleeve 2-2 all the time, so that the second through hole 1-4 can always face the first through hole 2-3, and gas can always flow into the storage tank through the gas inlet 1-1, the gas inlet channel, the second through hole 1-4 and the first through hole 2-3 in sequence.
In addition, in order to ensure the bridge removing effect, the flow rate of the gas is controlled within 40-60 m/s.
On the basis of the above-described embodiment, it is further preferable that all the first through holes 2-3 are uniformly arranged along the circumferential wall and the axial direction of the outer sleeve 2-2, and the aperture of the first through holes 2-3 is 3-20 μm.
Specifically, the upper section of the outer sleeve 2-2 is an annular sleeve, and the lower section is sintered metal.
On the basis of the above-described embodiment, it is further preferable that all the second through holes 1-4 are uniformly arranged along the circumferential wall and the axial direction of the inner sleeve 1-3, and that the second through holes 1-4 have a pore diameter of 1-3mm.
That is, a plurality of rows of the second through holes 1-4 are provided at intervals along the axial direction of the inner sleeve 1-3, and each row of the second through holes 1-4 is provided at intervals along the circumferential side wall of the inner sleeve 1-3.
On the basis of the above embodiment, as a further preferable mode, the bridge sleeve assembly further comprises a sealing cavity 2-1, wherein the sealing cavity is communicated with one end of the outer sleeve 2-2, which is positioned outside the storage tank, and is in sealing connection with the inner sleeve 1-3, and inert gas is arranged in the sealing cavity 2-1 so as to prevent powder from drifting out.
Specifically, the sealing cavity 2-1 and the outer sleeve 2-2 are integrally arranged, that is, one end of the outer sleeve 2-2, which is positioned outside the storage tank, is the sealing cavity 2-1, the size of the sealing cavity 2-1 is larger than that of the outer sleeve 2-2, one end of the inner sleeve 1-3 sequentially penetrates into the sealing cavity 2-1 and the outer sleeve 2-2, the joint of the inner sleeve 1-3 and the sealing cavity 2-1 is sealed, meanwhile, one end, which is away from the storage tank, of the sealing cavity 2-1 is provided with the sealing air inlet 2-4, and inert gas is introduced into the sealing cavity 2-1 through the sealing air inlet 2-4, so that the sealing effect is achieved.
Further, since the density of the inert gas is greater than that of the air, the pressure in the sealing cavity 2-1 is greater than that in the storage tank, and the powder in the storage tank is tightly sealed by the pressure difference, so that the powder is prevented from channeling into the sealing cavity 2-1.
Of course, the pressure difference between the sealed cavity 2-1 and the storage tank cannot be too large, otherwise the bridge removal efficiency is affected; and the pressure difference between the sealing cavity 2-1 and the storage tank is maintained at 5-7 KPa.
Further preferably, on the basis of the above embodiment, the bridge sleeve assembly further comprises a driving member 1-2 connected to one end of the inner sleeve 1-3 extending beyond the outer sleeve 2-2 for driving the inner sleeve 1-3 to move along the outer sleeve 2-2.
In addition, the driving piece 1-2 can be coupled with a sensor to control the inner sleeve 1-3 to automatically move up and down, so that automatic bridge removal is realized, and the bridge removal efficiency is improved.
It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The present utility model has been described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (8)
1. A bridge removal device for a storage tank, comprising:
the bridge removing sleeve assembly is arranged in the storage tank and can move along the axial direction of the storage tank;
the air inlet is arranged at one end of the bridge removing sleeve assembly;
the air inlet channel is arranged on the bridge removing sleeve assembly, one end of the air inlet is communicated with the air inlet, the other end of the air inlet is communicated with the storage tank, and when the bridge removing sleeve assembly moves along the axial direction of the storage tank, the air inlet channel is used for introducing gas into different height positions in the storage tank so as to loosen powder at the different height positions in the storage tank.
2. The bridge removal apparatus for a storage tank of claim 1, wherein the bridge removal sleeve assembly comprises:
one end of the outer sleeve is arranged in the storage tank, extends to the bottom of the storage tank along the axial direction of the storage tank, and is provided with a plurality of first through holes communicated with the storage tank;
one end of the inner sleeve is arranged in the outer sleeve and can move along the outer sleeve, the inner sleeve is provided with a plurality of second through holes communicated with the outer sleeve, and the first through holes, the second through holes and the inner side wall of the inner sleeve form the air inlet channel.
3. The bridge removal device for a storage tank of claim 2, wherein said air inlet is provided at an end of said inner sleeve located outside said storage tank.
4. The bridge removing device for a storage tank according to claim 2, wherein all the first through holes are uniformly formed in a first preset section of the outer sleeve, all the second through holes are uniformly formed in a second preset section at the bottom of the inner sleeve, and the inner sleeve drives the second preset section to move within the range of the first preset section.
5. The bridge removing device for a storage tank according to claim 4, wherein all the first through holes are uniformly provided along the circumferential wall and the axial direction of the outer sleeve, and the aperture of the first through holes is 3-20 μm.
6. The bridge removing device for a storage tank according to claim 4, wherein all the second through holes are uniformly provided along the circumferential wall and the axial direction of the inner sleeve, and the aperture of the second through holes is 1-3mm.
7. The bridge removal apparatus for a storage tank of any one of claims 2-6, wherein the bridge removal sleeve assembly further comprises:
the sealed cavity is communicated with one end of the outer sleeve outside the storage tank and is in sealing connection with the inner sleeve, and inert gas is arranged in the sealed cavity so as to prevent the powder from drifting out.
8. The bridge removal apparatus for a storage tank of any one of claims 2-6, wherein the bridge removal sleeve assembly further comprises:
and the driving piece is connected with one end of the inner sleeve extending out of the outer sleeve and is used for driving the inner sleeve to move along the outer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320404075.0U CN219651869U (en) | 2023-03-01 | 2023-03-01 | Bridge removing device for storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320404075.0U CN219651869U (en) | 2023-03-01 | 2023-03-01 | Bridge removing device for storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219651869U true CN219651869U (en) | 2023-09-08 |
Family
ID=87853551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320404075.0U Active CN219651869U (en) | 2023-03-01 | 2023-03-01 | Bridge removing device for storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219651869U (en) |
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2023
- 2023-03-01 CN CN202320404075.0U patent/CN219651869U/en active Active
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